nu-table/ Do footer_inheritance by accouting for rows rather then a f… (#14380)

So it's my take on the comments in #14060 

The change could be seen in this test.
Looks like it works :) but I haven't done a lot of testing.


0b1af77415/crates/nu-command/tests/commands/table.rs (L3032-L3062)

```nushell
$env.config.table.footer_inheritance = true;
$env.config.footer_mode = 7;
[[a b]; ['kv' {0: [[field]; [0] [1] [2] [3] [4] [5]]} ], ['data' 0], ['data' 0] ] | table --expand --width=80
```

```text
╭───┬──────┬───────────────────────╮
│ # │  a   │           b           │
├───┼──────┼───────────────────────┤
│ 0 │ kv   │ ╭───┬───────────────╮ │
│   │      │ │   │ ╭───┬───────╮ │ │
│   │      │ │ 0 │ │ # │ field │ │ │
│   │      │ │   │ ├───┼───────┤ │ │
│   │      │ │   │ │ 0 │     0 │ │ │
│   │      │ │   │ │ 1 │     1 │ │ │
│   │      │ │   │ │ 2 │     2 │ │ │
│   │      │ │   │ │ 3 │     3 │ │ │
│   │      │ │   │ │ 4 │     4 │ │ │
│   │      │ │   │ │ 5 │     5 │ │ │
│   │      │ │   │ ╰───┴───────╯ │ │
│   │      │ ╰───┴───────────────╯ │
│ 1 │ data │                     0 │
│ 2 │ data │                     0 │
├───┼──────┼───────────────────────┤
│ # │  a   │           b           │
╰───┴──────┴───────────────────────╯
```

Maybe it will also solve the issue you @fdncred encountered.

close #14060
cc: @NotTheDr01ds

crates/nu-command/src/viewers/table.rs

@@ -1088,7 +1088,7 @@ fn create_empty_placeholder(
     let data = vec![vec![cell]];
     let mut table = NuTable::from(data);
     table.set_data_style(TextStyle::default().dimmed());
-    let out = TableOutput::new(table, false, false, false);
+    let out = TableOutput::new(table, false, false, 1);
 
     let style_computer = &StyleComputer::from_config(engine_state, stack);
     let config = create_nu_table_config(&config, style_computer, &out, false, TableMode::default());